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Tju [1.3M]
3 years ago
14

How do I work this problem out? 7/8-1/4

Mathematics
2 answers:
Tems11 [23]3 years ago
8 0
<span>7/8 - 1/4 = 7/8 - 2/8 = 5/8</span>
crimeas [40]3 years ago
8 0
7/8-1/4 = 7/8-2/8 = 7-2/8 =5/8
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The percent of increase or decrease i. this irem
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Since the price is going down, it's going to be a percent decrease. Now to find the percent, we divide the "after" price by the "before" price.

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3 years ago
Question in picture<br><br>A) 16/63<br><br>B)-16/63<br><br>C) 63/16<br><br>D) -63/16
Orlov [11]
ANSWER
\tan(x + y) =  -  \frac{63}{16}


EXPLANATION


We were given that,

\csc(x)  =  \frac{5}{3}

This implies that,

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We use the Pythagorean identity

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We were also given that,


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This is because,


0 <  \: x \:  <  \frac{\pi}{2}


0 <  \: y \:  <  \frac{\pi}{2}

This angles are in the first quadrant so we pick the positive values.

\tan(x + y)  =  \frac{ \sin(x + y) }{ \cos(x + y) }


\tan(x + y)  =  \frac{ \sin(x ) \cos(y)   +  \sin(y)  \cos(x) }{ \cos(x) \cos(y)  -  \sin(x)  \sin(y) }



\tan(x + y)  =  \frac{  \frac{3}{5}   \times  \frac{5}{13}  +   \frac{12}{13}   \times  \frac{4}{5}  }{  \frac{4}{5}  \times  \frac{5}{13}   -   \frac{3}{5}  \times  \frac{12}{13}  }



\tan(x + y) =  -  \frac{63}{16}

The correct answer is D
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Answer:

no

Step-by-step explanation:

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schepotkina [342]
I think that the answer is 0.9

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